Restorative for blemished moving-picture films.



UNITED STATES PATENT OFFICE.

FREDERICK W. HOCHB'I'ETTEB, OF NEW YORK, N. Y., ASSIGNOB TO PAUL M. PIERSON,

OF SCABBORO-ON-THE-HUDSON, NEW YORK.

BESTOBATIVE FOB BLEMISHED MOVING-PICTURE FILMS.

No Drawing.

To all whom it may concern:

Be it known that I, Fnsnsnron W. Hocns'rs'rrnn, a subject of the Emperor of Germany and a resident of New York, county and tate of New York, have invented a new and useful Restorative for Blemished Moving-Picture Films, of which the followa is a full, clear, and exact specification. %his invention relates to a modified composition of matter disclosed in m pending applications for Letters Patent, erial No. 782,465 filed November 20, 1912, and Serial No. 770,177, filed May 27, 1913.

The object of the invention is to provide certain ingredients designed to be utilized for treating moving picture films employed for exhibiting the motion acts of persons, or other objects upon a screen when the pictures thereof are impaired by scratches from articles of dust, or when the film becomes iiard and brittle during its transmission throu h a rojecting ap aratus, and which are a apte to restore t e photography of the ictures by removing the blemishes thus pro need as well as restoring the flexibility of the film, thereby greatly adding to the durability and attractiveness of moving picture films.

My composition of matter consists of the following ingredients, combined in the proportions stated, viz :vegetable, or mineral oil, such as oil of turpentine, benzin, naphtha, olive oil, cottonseed oil, oil of petroleum, oil of sweet almonds, linseed oil, sperm oil, or the like b weight 6 ounces; spirits of camphor $U. P. strenghg by weight 2 ounces; sul uric ether (U. strength) by weight 1} ounce; glycerin, by weight 1 ounce.

One or more of the oils, as occasion reuires, are placed in a suitable vessel, and t re spirits of cam hor and glycerin are incorporated therewith by agitation through the employment of any desired method, or

Specification 0! Letters rstent.

Application filed June 4, 1913. Serial No. 771,689.

Patented May 18, 1915.

the ingredients may be subjected to a gentle heat if desired until the alcohol of the spirits of cam hor is evaporated. After the mixture is coo ed sullicientl if heat is used, the sulfuric ether is then a ded and mingled with the other ingredients.

In ractice this composition for restoring the pictures on films is used by applying .1 required quantity of the mixture upon the surface of the h' m through the medium of one, or more buil'ers made of chamois skin, flannel, or other soft material. By then rubbing the coating on the film the mixture will penetrate the crevices of the scratches as well as soften the texture of the film for restoring its flexibility. Upon the subseuent removal of all surplus of the mixture rom the film with the use of a polishing cloth, or otherwise the scratches will be freed of the particles of dust, or other foreign substance, and the high lights and shadows of the photography of the pictures will be restored to approximately their normal clearness.

Irluving thus described my invention, I claim as new and desire to secure by Letters Patent 1. The herein described restorative for moving picture films comprising in combination, an oil spirits of camphor, sulfuric ether, and glycerin, substantially as set forth.

2. The herein described restorative for moving picture films comprising an oil six ounces, spirits of camphor two ounces, sulfuric ether one-half ounce, and lycerin one ounce, substantially as described.

This s ecifieation si ed and witnessed this thir day of June 1 D. 1913.

FREDERICK W- llOQllS'lET'lElt.

WVitnesses:

Ron'r. B. Annorr, M. Dnimoor.

Uopiea of this patent may be obtained for an cents each, by addressing the "Commissioner of rateata, Walhingtomno." 

